What We Learn By Contrasting the Impacts of Greek and Puerto Rican Default

Don't you hate it when you have a great title and no post to go with it. Greece today v Puerto Rico today non post inspired by

Presumably the US government won’t react to a Puerto Rican default by kicking it off the dollar.

— Matt! (@mattyglesias) June 29, 2015

I'm pretty sure this non-post is a quotation of Daniel Davies, but I can't find the link.